US11515068B2 - Exciter - Google Patents

Exciter Download PDF

Info

Publication number
US11515068B2
US11515068B2 US16/994,704 US202016994704A US11515068B2 US 11515068 B2 US11515068 B2 US 11515068B2 US 202016994704 A US202016994704 A US 202016994704A US 11515068 B2 US11515068 B2 US 11515068B2
Authority
US
United States
Prior art keywords
exciter
yoke
magnetic
magnetic member
coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US16/994,704
Other languages
English (en)
Other versions
US20210005370A1 (en
Inventor
Xudong Yan
Wenya Han
Wei Liu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Pte Ltd
Original Assignee
AAC Technologies Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AAC Technologies Pte Ltd filed Critical AAC Technologies Pte Ltd
Assigned to AAC Technologies Pte. Ltd. reassignment AAC Technologies Pte. Ltd. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAN, WENYA, LIU, WEI, YAN, Xudong
Publication of US20210005370A1 publication Critical patent/US20210005370A1/en
Application granted granted Critical
Publication of US11515068B2 publication Critical patent/US11515068B2/en
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1638—Armatures not entering the winding
    • H01F7/1646—Armatures or stationary parts of magnetic circuit having permanent magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H01F2007/086—Structural details of the armature
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities

Definitions

  • the present disclosure relates to the field of exciters, and in particular to an exciter for screen sounding.
  • a magnet conductive iron core is usually provided inside a coil.
  • the magnet conductive iron core makes the high frequency impedance of the coil increase sharply, which affects the performance of the exciter and decreases high-frequency radiation.
  • the present disclosure is directed to an exciter with improved high frequency performance.
  • the present disclosure provides an exciter which comprises a first yoke having a first accommodation space with a first open end, a second yoke having a second accommodation space with a second open end which faces the first open end, the second open end being spaced from the first open end in a vibration direction.
  • the exciter further comprises a first magnetic member accommodated in the first accommodation space, a magnetic core and a coil accommodated in the second accommodation space, the coil wound around the magnetic core, a second magnetic member accommodated in the second accommodation space and located at outside of the coil, and a copper tube wound around the magnetic core and sandwiched between the magnetic core and the coil.
  • the at least one second magnetic member comprises two second magnetic members respectively located at opposite sides of the coil symmetrically.
  • the two second magnetic members are magnetized in the vibration direction, and magnetized directions of the two second magnetic members are reverse to each other.
  • the first magnetic member and the at least one second magnetic member are magnetized in the vibration direction, and magnetized directions of the first magnetic member and the at least one second magnetic member are reverse to each other.
  • the first magnetic member and the at least one second magnetic member are permanent magnets.
  • a projection of the at least one second magnetic member in the vibration direction at least partially overlaps with a projection of the first magnetic member in the vibration direction.
  • the first yoke comprises a first end wall and a first side wall extending from the first end wall toward the second yoke; and the second yoke comprises a second end wall and a second side wall extending from the second end wall toward the first yoke, the magnetic core being fixed to the second end wall.
  • the exciter further comprises an elastic member connected and located between the first yoke and the second yoke in the vibration direction.
  • the elastic member comprises a first end and a second end spaced from the first end in a direction perpendicular to the vibration direction, the first end being attached to the first side wall of the first yoke, the second end being attached to the second side wall of the second yoke.
  • the first side wall is aligned with the second side wall with a gap in the vibration direction is formed between the first side wall and the second side wall such that the second open end is spaced from the first open end in the vibration direction
  • the elastic member is ring-shaped.
  • the magnetic core is made of iron.
  • the exciter of the present disclosure applies a copper tube which is sleeved on the magnetic core and sandwiched between the magnetic core and the coil.
  • the copper tube is capable of suppressing the high frequency impedance of the coil and therefore improves the high frequency performance and the reliability of the exciter.
  • FIG. 1 is a schematic view of an exciter in accordance with a first exemplary embodiment of the present disclosure
  • FIG. 2 is an exploded view of the exciter of FIG. 1 ;
  • FIG. 3 is a cross-sectional view taken along line of FIG. 1 ;
  • FIG. 4 is a cross-sectional view of a first yoke and a second yoke in FIG. 3 ;
  • FIG. 5 is a schematic view of an exciter in accordance with a second exemplary embodiment of the present disclosure.
  • FIG. 6 is an exploded view of the exciter of FIG. 5 ;
  • FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 5 .
  • an exciter 100 in accordance with a first exemplary embodiment of the present disclosure comprises a first yoke 1 with a first accommodation space 10 , a second yoke 2 with a second accommodation space 20 , a first magnetic member 3 accommodated in the first accommodation space 10 , a second magnetic member 4 , a magnetic core 5 , a coil 6 and a copper tube 7 .
  • the second magnetic member 4 , the magnetic core 5 , the coil 6 and the copper tube 7 are accommodated in the second accommodation space 20 .
  • the second yoke 2 and the first yoke 1 are spaced from each other in the vibration direction of the exciter 100 .
  • One of the second yoke 2 and the first yoke 1 may be fixed to a screen of a mobile phone for vibrating the screen in the vibration direction.
  • the first yoke 1 comprises a first end wall 11 and a first side wall 12 extending from the first end wall 11 toward the second yoke 2 .
  • the first end wall 11 and the first side wall 12 cooperatively form the first accommodation space 10 with an open end.
  • the open end of the first accommodation space 10 is defined as the first open end 14 .
  • the first open end 14 faces the second yoke 2 in vibration direction.
  • the second yoke 2 comprises a second end wall 21 and a second side wall 22 extending from the second end wall 21 toward the first yoke 1 .
  • the second end wall 21 and the second side wall 22 cooperatively form a second accommodation space 20 with an open end.
  • the open end of the second accommodation space 20 is defined as the second open end 24 .
  • the second open end 24 faces the first open end 14 in the vibration direction.
  • the central axis of the first accommodation space 10 is aligned with the central axis of the second accommodation space 20 .
  • a gap in the vibration direction is formed between the first side wall 12 and the second side wall 22 such that the second open end 24 is spaced from the first open end 14 in the vibration direction.
  • the first magnetic member 3 is fixed to the first end wall 11 and accommodated in the first accommodation space 10 .
  • the magnetic core 5 is fixed to the second end wall 21 and accommodated in the second accommodation space 20 .
  • the magnetic core 5 is made of magnet conductive material.
  • the magnetic core 5 is made of iron.
  • the coil 6 is wound on the magnetic core 5 .
  • the magnetic core 5 made of magnet conductive material is capable of increasing the utilization rate of the magnet field significantly.
  • the second magnetic member 4 is arranged at the outside of the coil 6 with a gap formed therebetween.
  • the exciter applies two second magnetic member 4 which are located at opposite sides of the coil 6 symmetrically.
  • the number of the second magnetic members 4 is not limited to two.
  • Other number of second magnetic member 4 can be arranged at the outside of the coil 6 symmetrically.
  • the second magnetic member 4 can be a ring magnet.
  • the copper tube 7 is sleeved on the magnetic core 5 and sandwiched between the magnetic core 5 and the coil 6 , which facilities to suppress the high frequency impedance of the coil 6 and improves the high frequency performance of the exciter 100 .
  • the first magnetic member 3 and the second magnetic member 4 are magnetized in the vibration direction, and the magnetized directions of the first magnetic member 3 and the second magnetic member 4 are reverse to each other.
  • the magnetized directions of the second magnetic members 4 are the same.
  • the coil 6 defines an axial direction around which the coil 6 is wound.
  • the axial direction of the coil 6 is parallel to the vibration direction.
  • attraction forces are generated between the first magnetic member 3 and the magnetic core 5 and the second yoke 2 while a repulsive force is generated between the first magnetic member 3 and the second magnetic member 4 due to the polarity of two adjacent ends of the first magnetic member 3 and the second magnetic member 4 are the same.
  • the total of the attraction forces is equal to the repulsive force to thereby maintain the balance of the exciter 100 .
  • the coil 6 When the coil 6 is energized with alternating current, an electromagnetic force with variable directions is generated between the first magnetic member 3 and the coil 6 to thereby cause the exciter 100 to vibrate in the vibration direction.
  • the projection of the second magnetic member 4 in the vibration direction at least partially overlaps with the projection of the first magnetic member 3 in the vibration direction to increase the repulsive force between the first magnetic member 3 and the second magnetic member 4 in the vibration direction.
  • the first magnetic member 3 and the second magnetic member 4 both are permanent magnets.
  • FIGS. 5-7 illustrate an exciter in accordance with a second exemplary embodiment of the present disclosure.
  • the exciter of the second exemplary embodiment of the present disclosure is similar to the exciter of the first exemplary embodiment of the present disclosure except that the exciter 200 of the second exemplary embodiment further comprises an elastic member 8 connected between the first yoke 1 and the second yoke 2 .
  • the elastic member 8 is fixedly connected between the side wall 22 of the second yoke 2 and the first yoke 1 .
  • one end of the elastic plate 8 is fixed to the side wall 22 of the second yoke 2 and the other end is fixed to the side wall 12 of the first yoke 1 .
  • the repulsive force between the first magnetic member 3 and the second magnetic member 4 is slightly larger than the attractive force between the first magnetic member 3 and the magnetic core 5 and the second yoke 2 , which reduces the damage to the screen caused by the attractive force.
  • the elastic member 8 disposed between the first yoke 1 and the second yoke 2 facilitates to maintain the exciter 200 in a state of balanced force in the vibration direction, thereby improving the reliability of the exciter 200 .
  • the elastic member 8 is ring-shaped.
  • the first side wall 12 of the first yoke 1 is aligned with the second side wall 22 of the second yoke 2 in the vibration direction.
  • the outline of the elastic member 8 conforms to the outlines of the side wall 12 of the first yoke 1 and the side wall 22 of the second yoke 2 .
  • the exciter of the present disclosure applies a copper tube 7 which is sleeved on the magnetic core 5 and sandwiched between the magnetic core 5 and the coil 6 .
  • the copper tube 7 is capable of suppressing the high frequency impedance of the coil 6 and therefore improves the high frequency performance and the reliability of the exciter 100 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
US16/994,704 2019-07-05 2020-08-17 Exciter Active 2039-12-07 US11515068B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/094871 WO2021003602A1 (zh) 2019-07-05 2019-07-05 激励器

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/094871 Continuation WO2021003602A1 (zh) 2019-07-05 2019-07-05 激励器

Publications (2)

Publication Number Publication Date
US20210005370A1 US20210005370A1 (en) 2021-01-07
US11515068B2 true US11515068B2 (en) 2022-11-29

Family

ID=69484769

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/994,704 Active 2039-12-07 US11515068B2 (en) 2019-07-05 2020-08-17 Exciter

Country Status (3)

Country Link
US (1) US11515068B2 (zh)
CN (1) CN210093531U (zh)
WO (1) WO2021003602A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113840213B (zh) * 2020-06-08 2022-11-29 京东方科技集团股份有限公司 一种差分驱动结构、屏幕及电子设备
JP2022158372A (ja) * 2021-04-02 2022-10-17 日本電産サンキョー株式会社 アクチュエータ
CN113271513B (zh) * 2021-05-10 2023-02-17 苏州索迩电子技术有限公司 一种骨传导发声装置和一种可穿戴设备

Citations (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1723111A (en) * 1928-06-27 1929-08-06 Kohler Co Alternator with inherent regulation
US4192230A (en) * 1977-11-03 1980-03-11 U.S. Philips Corporation Printer, provided with an impact device comprising a transducer
US5396563A (en) * 1991-06-03 1995-03-07 Pioneer Electronic Corporation Earphone
US5619103A (en) * 1993-11-02 1997-04-08 Wisconsin Alumni Research Foundation Inductively coupled plasma generating devices
US5877569A (en) * 1995-04-20 1999-03-02 Brose Fahrzeugteile Gmbh & Co. Kg Drive device with an electric motor and a relay switching the motor current
US5949315A (en) * 1994-12-06 1999-09-07 Brose Fahrzeugteile Gmbh & Co. Kg Polarized relay
US6511042B1 (en) * 1999-06-18 2003-01-28 Robert Bosch Gmbh Electrically controlled valve
US20040028254A1 (en) * 2000-11-23 2004-02-12 Wolfgang Bachmann Electromagnetic driver for a planar diaphragm loudspeaker
US20090267423A1 (en) * 2008-04-23 2009-10-29 Hiroo Kajiwara Electromagnetic exciter
US20120170795A1 (en) * 2009-09-09 2012-07-05 Ask Industries Societa' Per Azioni Shaker-type transducer with centering device
US20140079253A1 (en) * 2012-09-14 2014-03-20 Aac Microtech (Changzhou) Co., Ltd., Suspension and speaker using same
US20140247960A1 (en) * 2011-12-20 2014-09-04 Aac Acoustic Technologies (Shenzhen) Co., Ltd. Electromagnetic transducer
US20150030198A1 (en) * 2013-07-23 2015-01-29 AAC Technologies Pte. Ltd. Vibration sounder
US20150086066A1 (en) * 2013-09-25 2015-03-26 AAC Technologies Pte. Ltd. Electro-acoustic transducer
US20170117788A1 (en) * 2015-10-21 2017-04-27 AAC Technologies Pte. Ltd. Vibration Motor
US20170192194A1 (en) * 2015-12-30 2017-07-06 AAC Technologies Pte. Ltd. Lens Driving Device
US9871432B2 (en) * 2015-07-31 2018-01-16 AAC Technologies Pte. Ltd. Micro vibration motor
US10008894B2 (en) * 2015-10-15 2018-06-26 AAC Technologies Pte. Ltd. Double resonance vibration motor
US10220412B2 (en) * 2015-11-20 2019-03-05 AAC Technologies Pte. Ltd. Vibration motor
US10447131B2 (en) * 2017-04-14 2019-10-15 AAC Technologies Pte. Ltd. Linear vibration motor
US10447129B2 (en) * 2017-04-14 2019-10-15 AAC Technologies Pte. Ltd. Vibration motor
US10644554B2 (en) * 2017-04-14 2020-05-05 AAC Technologies Pte. Ltd. Vibration device
US20200165152A1 (en) * 2018-11-27 2020-05-28 Aac Acoustic Technologies (Shenzhen) Co., Ltd. Mold and method for processing glass
US20200280796A1 (en) * 2019-02-28 2020-09-03 Lg Display Co., Ltd. Display apparatus
US20210328491A1 (en) * 2018-08-28 2021-10-21 Minebea Mitsumi Inc. Vibration actuator and electronic equipment
US20210352390A1 (en) * 2020-05-11 2021-11-11 Lg Display Co., Ltd. Sound generating apparatus for vehicles and vehicle including the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200956660Y (zh) * 2006-06-30 2007-10-03 常州美欧电子有限公司 带短路结构的扬声器
CN102387450A (zh) * 2010-08-31 2012-03-21 张凡 双磁隙双线圈外磁式换能器及其制备方法
CN203661283U (zh) * 2013-12-13 2014-06-18 瑞声光电科技(常州)有限公司 电磁驱动装置
CN203747994U (zh) * 2014-01-06 2014-07-30 瑞声光电科技(常州)有限公司 电磁驱动器
CN106375915B (zh) * 2016-10-31 2024-04-16 深圳市冠旭电子股份有限公司 一种扬声器及耳机
JP2018207265A (ja) * 2017-06-02 2018-12-27 アルパイン株式会社 スピーカ
CN108880169A (zh) * 2018-08-03 2018-11-23 瑞声科技（南京）有限公司 线性振动电机

Patent Citations (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1723111A (en) * 1928-06-27 1929-08-06 Kohler Co Alternator with inherent regulation
US4192230A (en) * 1977-11-03 1980-03-11 U.S. Philips Corporation Printer, provided with an impact device comprising a transducer
US5396563A (en) * 1991-06-03 1995-03-07 Pioneer Electronic Corporation Earphone
US5619103A (en) * 1993-11-02 1997-04-08 Wisconsin Alumni Research Foundation Inductively coupled plasma generating devices
US5949315A (en) * 1994-12-06 1999-09-07 Brose Fahrzeugteile Gmbh & Co. Kg Polarized relay
US5877569A (en) * 1995-04-20 1999-03-02 Brose Fahrzeugteile Gmbh & Co. Kg Drive device with an electric motor and a relay switching the motor current
US6511042B1 (en) * 1999-06-18 2003-01-28 Robert Bosch Gmbh Electrically controlled valve
US20040028254A1 (en) * 2000-11-23 2004-02-12 Wolfgang Bachmann Electromagnetic driver for a planar diaphragm loudspeaker
US20090267423A1 (en) * 2008-04-23 2009-10-29 Hiroo Kajiwara Electromagnetic exciter
US20120170795A1 (en) * 2009-09-09 2012-07-05 Ask Industries Societa' Per Azioni Shaker-type transducer with centering device
US20140247960A1 (en) * 2011-12-20 2014-09-04 Aac Acoustic Technologies (Shenzhen) Co., Ltd. Electromagnetic transducer
US20140079253A1 (en) * 2012-09-14 2014-03-20 Aac Microtech (Changzhou) Co., Ltd., Suspension and speaker using same
US20150030198A1 (en) * 2013-07-23 2015-01-29 AAC Technologies Pte. Ltd. Vibration sounder
US20150086066A1 (en) * 2013-09-25 2015-03-26 AAC Technologies Pte. Ltd. Electro-acoustic transducer
US9871432B2 (en) * 2015-07-31 2018-01-16 AAC Technologies Pte. Ltd. Micro vibration motor
US10008894B2 (en) * 2015-10-15 2018-06-26 AAC Technologies Pte. Ltd. Double resonance vibration motor
US20170117788A1 (en) * 2015-10-21 2017-04-27 AAC Technologies Pte. Ltd. Vibration Motor
US10220412B2 (en) * 2015-11-20 2019-03-05 AAC Technologies Pte. Ltd. Vibration motor
US20170192194A1 (en) * 2015-12-30 2017-07-06 AAC Technologies Pte. Ltd. Lens Driving Device
US10447131B2 (en) * 2017-04-14 2019-10-15 AAC Technologies Pte. Ltd. Linear vibration motor
US10447129B2 (en) * 2017-04-14 2019-10-15 AAC Technologies Pte. Ltd. Vibration motor
US10644554B2 (en) * 2017-04-14 2020-05-05 AAC Technologies Pte. Ltd. Vibration device
US20210328491A1 (en) * 2018-08-28 2021-10-21 Minebea Mitsumi Inc. Vibration actuator and electronic equipment
US20200165152A1 (en) * 2018-11-27 2020-05-28 Aac Acoustic Technologies (Shenzhen) Co., Ltd. Mold and method for processing glass
US20200280796A1 (en) * 2019-02-28 2020-09-03 Lg Display Co., Ltd. Display apparatus
US20210352390A1 (en) * 2020-05-11 2021-11-11 Lg Display Co., Ltd. Sound generating apparatus for vehicles and vehicle including the same

Also Published As

Publication number Publication date
US20210005370A1 (en) 2021-01-07
CN210093531U (zh) 2020-02-18
WO2021003602A1 (zh) 2021-01-14

Similar Documents

Publication Publication Date Title
US11515068B2 (en) Exciter
US10063128B2 (en) Linear vibrator
JP6184622B2 (ja) ハプティックアクチュエータ
CN106658309B (zh) 振动发声装置
US9154884B2 (en) Electro-acoustic transducer
US20170120297A1 (en) Haptic actuator
US10187730B1 (en) Sound generating device
US20150214822A1 (en) Linear vibration motor
US11515773B2 (en) Linear vibration motor and electronic device
US11309782B2 (en) Linear vibration motor
WO2020215785A1 (zh) 振动发声装置以及电子产品
US20200212776A1 (en) Linear Vibration Motor
WO2022143047A1 (zh) 振动激励器
US20170272865A1 (en) Voice coil wire, voice coil manufactured by winding the same, loudspeaker and vibration motor
KR20190121098A (ko) 수평형 리니어 진동발생장치
WO2020224281A1 (zh) 振动发声装置以及电子产品
US20200412219A1 (en) Electromagnetic Actuator
US20200314548A1 (en) Speaker
WO2020125789A1 (zh) 屏幕振动发声装置和电子产品
WO2020135289A1 (zh) 一种屏幕振动发声装置和电子产品
KR20130120040A (ko) 선형진동모터
US9238252B2 (en) Vibration sounder
US20210016321A1 (en) Electromagnetic driving device
WO2018166090A1 (zh) 线性振动马达
US10869135B2 (en) Speaker

Legal Events

Date Code Title Description
FEPP Fee payment procedure

Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

AS Assignment

Owner name: AAC TECHNOLOGIES PTE. LTD., SINGAPORE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YAN, XUDONG;HAN, WENYA;LIU, WEI;REEL/FRAME:053692/0173

Effective date: 20200813

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: EX PARTE QUAYLE ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS

STPP Information on status: patent application and granting procedure in general

Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED

STCF Information on status: patent grant

Free format text: PATENTED CASE